/Engine/Plugins/Runtime/MeshModelingToolset/Source/ModelingComponents/Public/Selection/GeometrySelectionManager.h
Update the current active target set based on DesiredActiveSet, assuming that a validIGeometrySelectorFactorycan be found for each identifier. This function will emit a transaction/change if the target set is modified.
void SynchronizeActiveTargets ( const [TArray](API\Runtime\Core\Containers\TArray)< [FGeometryIdentifier](API\Plugins\ModelingComponents\Selection\FGeometryIdentifier) > & DesiredActiveSet, [TFunctionRef](API\Runtime\Core\GenericPlatform\TFunctionRef)< void()> WillChangeActiveTargetsCallback )